AS3Sender Class

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The AS3Sender class implements an AS3 / EDI-INT client.

Syntax

ipworksedi.as3sender()

Remarks

The AS3Sender component may be used to send EDI or other messages over FTP/S, using the AS3 protocol. It may also be used to verify Message Disposition Notifications (MDNs) returned by the server.

A typical AS3 transaction is as follows:

(1) The sender sends an EDI document to the receiver using FTP. The document may be signed, encrypted, and/or compressed, and a signed or unsigned receipt may be requested.

(2) The receiver decompresses and decrypts the message and verifies the signature.

(3) The receiver sends a signed receipt back to the client. The signature is over the hash of an MDN, which contains a hash of the received message.

When sending an EDI message, the client should specify, at a minimum, AS3From and AS3To, EDIDataData, and EDIDataEDIType. You will also need to specify User, Password, and RemoteHost to Logon to the FTP server. After doing this you may send the data by calling Send.

To secure the EDI transmission, the message may be signed and/or encrypted by setting the appropriate certificates. By default, the class will apply message security if the appropriate certificates are specified. To sign the data set SigningCert. To encrypt, set RecipientCerts.

TLS/SSL may be enabled by setting the SSLStartMode property. In case your trading partner is using a self-signed certificate it will be necessary to set SSLAcceptServerCert or trap the SSLServerAuthentication event to accept the certificate.

The message may also be compressed by setting CompressionFormat.

To request a receipt, or Message Disposition Notification (MDN), simply set the MDNTo property. The MDN will be returned to the FTP URL specified. The MDNOptions property may be used to customize the request. By default, the class will request a signed MDN over an SHA1 hash.

Validating AS3 MDNs

AS3 MDNs will be returned asynchronously over a separate connection. You may verify MDNs by invoking ReadReceipt. This will read the receipt from the FTP server (or from the MDNReceipt property). It will determine the MessageId of the original message and determine the originator and recipient of the MDN.

You should then look up your trading partner's certificates as well as the OriginalContentMIC (which you must store externally to verify signed receipts), and invoke VerifyReceipt.

Property List

The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

Method List

The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

Event List

The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

Config Settings

The following is a list of config settings for the class with short descriptions. Click on the links for further details.

AS3Sender.AS3From Property

The identity of the sending system.

Syntax

getAS3From(): string;
setAS3From(AS3From: string): void;

Default Value

""

Remarks

May be company name, DUNS number, or anything agreed on by trading partners.

Required.

AS3Sender.AS3To Property

The identity of the receiving system.

Syntax

getAS3To(): string;
setAS3To(AS3To: string): void;

Default Value

""

Remarks

May be company name, DUNS number, or anything agreed on by trading partners.

Required.

AS3Sender.AS3Version Property

The version of AS3 being used.

Syntax

getAS3Version(): string;
setAS3Version(AS3Version: string): void;

Default Value

"1.0"

Remarks

The version of AS3 being used. Should be "1.0".

AS3Sender.Attachments Property

Collection of files attached to the current message.

Syntax

getAttachments(): EDIAttachmentList;
setAttachments(attachments: EDIAttachmentList): void;

Default Value

Remarks

When a call to Send is made, the class will attach the files referenced by each EDIAttachment in this collection to the EDIData.

This property is not available at design time.

AS3Sender.CompressionFormat Property

The compression format (if any) to use.

Syntax

getCompressionFormat(): As3senderCompressionFormats;
setCompressionFormat(compressionFormat: As3senderCompressionFormats): void;

enum As3senderCompressionFormats {
  cfNone,
  cfZLIB
}

Default Value

0

Remarks

By default, outgoing data will not be compressed. Setting this property will instruct the class to compress the outgoing data using the indicated format.

Compression is highly recommended for large messages, as it will reduce network bandwidth and processing time required.

The compression algorithm used is Zlib, as required by RFC 3274 and defined in RFCs 1950 and 1951.

AS3Sender.Connected Property

This shows whether the class is connected.

Syntax

isConnected(): boolean;

Default Value

FALSE

Remarks

This property is used to determine whether or not the class is connected to the remote host.

Note: It is recommended to use the Connect or Disconnect method instead of setting this property.

This property is not available at design time.

AS3Sender.EDIData Property

The EDI or other data to be sent.

Syntax

getEDIData(): EDIData;
setEDIData(EDIData: EDIData): void;

Default Value

Remarks

The EDI message to send.

This property is not available at design time.

AS3Sender.EncryptionAlgorithm Property

The algorithm used to encrypt the EDI data.

Syntax

getEncryptionAlgorithm(): string;
setEncryptionAlgorithm(encryptionAlgorithm: string): void;

Default Value

"3DES"

Remarks

If RecipientCerts contains a valid certificate, the data will be encrypted using this certificate and the algorithm specified in EncryptionAlgorithm. If EncryptionAlgorithm is set to the empty string, the data will not be encrypted.

The class supports "3DES", or industry-standard 168-bit Triple-DES encryption.

The class supports "AES" encryption with a default keysize of 128 bits. You may also set "AESCBC192" or "AESCBC256" for 192- and 256-bit keysizes.

Possible values are:

• 3DES (default)
• DES
• AESCBC128
• AESCBC192
• AESCBC256
• AESGCM128
• AESGCM192
• AESGCM256

AS3Sender.Firewall Property

A set of properties related to firewall access.

Syntax

getFirewall(): Firewall;
setFirewall(firewall: Firewall): void;

Default Value

Remarks

This is a Firewall type property which contains fields describing the firewall through which the class will attempt to connect.

AS3Sender.FTPLastReply Property

The last reply from the FTP server.

Syntax

getFTPLastReply(): string;

Default Value

""

Remarks

The last reply from the FTP server.

This property is read-only.

AS3Sender.LocalHost Property

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

getLocalHost(): string;
setLocalHost(localHost: string): void;

Default Value

""

Remarks

The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.

If the class is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.

AS3Sender.LogDirectory Property

The path to a directory for logging.

Syntax

getLogDirectory(): string;
setLogDirectory(logDirectory: string): void;

Default Value

""

Remarks

Setting LogDirectory will instruct the component to log the details of each transmission to unique files in the specified directory. For each request processed, the class will log the original EDI data, the complete text of the outgoing request and the incoming response.

The class will write a file for each transmission, with extension ".log". In case of error an additional file will be written with extension ".err", and the error will be reported in both files. Raw AS3 messages created or downloaded by the class will be written with extension ".as3", and MDNs created or downloaded will be written with extension ".as3-mdn".

The filenames will be chosen automatically by the class. Each filename will be the system time, in the format YYYY-MM-DD-HH-MM-SS-MMMM, with extensions "-2", "-3", used in case files of those names already exist. After each transaction is processed LogFile will contain the name of the files just written, minus the extension ".log" or ".err".

If logs cannot be written an exception will be thrown.

AS3Sender.LogFile Property

The log file written.

Syntax

getLogFile(): string;

Default Value

""

Remarks

In case LogDirectory is specified two log files will be written in the specified directory and LogFile will contain the path.

LogFile will in fact refer to several files with appropriate extensions. A diagnostic log will be written with filename LogFile + ".log", and any EDI data read will be written with filename LogFile + ".dat". Raw AS3 messages and MDNs will also be written with extensions ".as3" and ".as3-mdn".

This property is read-only.

AS3Sender.MDNOptions Property

Used to indicate the options requested for the MDN receipt.

Syntax

getMDNOptions(): string;
setMDNOptions(MDNOptions: string): void;

Default Value

"signed-receipt-protocol=optional, pkcs7-signature; signed-receipt-micalg=optional, sha-256"

Remarks

By default, the class will request that the MDN be signed with a PKCS#7 signature over a SHA-256 hash, which is the industry standard.

Set MDNOptions to an empty string to request an unsigned receipt.

This property will automatically be updated when SignatureAlgorithm is set. Normally you will not need to set this property, however you can set a value here to override the automatically generated value.

The string format is that of the Disposition-Notification-Options HTTP header, as specified in RFC 3335. As a form of shorthand, you may set this property to "sha1", "sha-256", or "md5" to request the indicated hash algorithm.

AS3Sender.MDNReceipt Property

The MDN receipt returned from the server.

Syntax

getMDNReceipt(): MDNReceipt;
setMDNReceipt(MDNReceipt: MDNReceipt): void;

Default Value

Remarks

This property will contain an instance of MDNReceipt with the complete MDN receipt returned from the AS2 receiver. The receipt will be a signed or unsigned multipart/report in MIME format. For synchronous MDN requests, this property is populated automatically after the call to Post. If an asynchronous MDN is sent over HTTP, it may be read from the HTTP context by calling ReadAsyncReceipt, or it may be set manually.

When MDNReceipt is set to a valid MDN receipt, the originator of the receipt will be stored in AS2To, the intended recipient (presumably your system) will be stored in AS2From, and the original message ID will be stored in MessageId.

If you are processing a MDN receipt asynchronously, you can use the values to look up the original message and validate the receipt. Set the OriginalContentMIC, MDNOptions, and ReceiptSignerCert to the values originally computed when the message was sent (if you are requesting async MDNs you must save this information externally.). You can then validate the asynchronous receipt by invoking VerifyReceipt.

Alternatively, AsyncMDNInfoDir may be set in place of OriginalContentMIC, MessageId, and MDNOptions (provided it was set to the same value when the message was sent). If AsyncMDNInfoDir was specified when the message was sent, the class would have saved OriginalContentMIC and MDNOptions to a file identified by the MessageId for the transmission. These properties are read from the file matching the MessageId in the MDNReceipt automatically if AsyncMDNInfoDir is specified.

Note: MDNReceipt must be populated prior to calling VerifyReceipt.

AS3Sender.MDNTo Property

The system to which an MDN should be directed.

Syntax

getMDNTo(): string;
setMDNTo(MDNTo: string): void;

Default Value

""

Remarks

If this property is set, a Disposition-Notification-To header will be added to the request, and an MDN will be requested. You should specify a valid FTP URL for the request, e.g., "ftp://123.0.0.1".

By default, the class will request a PKCS#7 signature signed over SHA-1. You may set MDNOptions to customize this.

AS3Sender.MessageId Property

The Id of the message.

Syntax

getMessageId(): string;
setMessageId(messageId: string): void;

Default Value

""

Remarks

The Id format is as in RFC 2822: id-left@id-right .

A unique Id will automatically be generated on startup. Sending a message will reset id-left if the MessageId has been used in the previous message.

If you set MessageId to a string of the form "@(id-right)" a unique id-left will be generated. If you set MessageId to an empty string, a new MessageId will be generated with the same id-right.

After an MDNReceipt is returned or set, MessageId will contain the Original-Message-ID found in the MDN Receipt.

This property is not available at design time.

AS3Sender.OriginalContentMIC Property

The Message Integrity Check(s) (one-way hash) of the outgoing message.

Syntax

getOriginalContentMIC(): string;
setOriginalContentMIC(originalContentMIC: string): void;

Default Value

""

Remarks

A MIC will be calculated over the outgoing message using the same algorithm in the SignatureAlgorithm configuration used to sign the message. The property will be set when Post (in AS3, Send) is invoked, and the MIC will automatically be checked against the Original-Content-MIC in the MDN for synchronous MDNs.

The format is in RFC 3335, i.e. "w7AguNJEmhF/qIjJw6LnnA==, md5", with a newline at the end.

If you are requesting an asynchronous MDN, you must save this value externally so that it can be loaded when the MDN is received (you may also use AsyncMDNInfoDir).

AS3Sender.Passive Property

This controls whether or not to direct the server into a passive mode. It is recommended if behind a firewall.

Syntax

isPassive(): boolean;
setPassive(passive: boolean): void;

Default Value

TRUE

Remarks

This property controls whether or not to direct the server into a passive mode. Many firewalls will not allow the FTP server to open a connection from outside to the higher ports where the FTP client class expects them to be. If Passive is set to TRUE, the class will use the PASV command instead of the PORT command and thus will direct the server into a passive mode: connections are initiated only by the client.

AS3Sender.Password Property

This is the password used to log in.

Syntax

getPassword(): string;
setPassword(password: string): void;

Default Value

""

Remarks

This property contains the password used to log in. It must be set before the class connects to the FTP server.

AS3Sender.ReceiptSignerCert Property

The public key certificate for the MDN receipt signature.

Syntax

getReceiptSignerCert(): Certificate;
setReceiptSignerCert(receiptSignerCert: Certificate): void;

Default Value

Remarks

Ordinarily, if your trading partner uses the same certificate for both signing and encryption, the certificate specified in RecipientCert is used for both encryption and verifying the receipt signature.

If your trading partner uses different certificates for signing and encryption, you must set this property to the public key for you partner's signing certificate before invoking Post.

After invoking Post or VerifyReceipt, this will contain the certificate used to sign the receipt, if the receipt is signed.

If set, this property should be a public key instance of Certificate.

AS3Sender.RecipientCerts Property

The public key certificates of the recipients for this message.

Syntax

getRecipientCerts(): CertificateList;
setRecipientCerts(recipientCerts: CertificateList): void;

Default Value

Remarks

The encryption certificates of the recipients. If this property is specified, the message content will be encrypted using the algorithm given by EncryptingAlgorithm.

This property will also be used to verify signed receipts if ReceiptSignerCert is not specified. In this case, it will use the first certificate found in the collection, if one exists. If your trading partner uses different certificates for signing and encryption, you should set RecipientCerts to the encryption certificate(s) and ReceiptSignerCert to the signing certificate.

If the class is unable to verify a signature make sure RecipientCerts are set appropriately.

If set, this property should could contain public key instances of Certificate.

This property is not available at design time.

AS3Sender.RemoteHost Property

This is the domain name or IP address of the FTP server.

Syntax

getRemoteHost(): string;
setRemoteHost(remoteHost: string): void;

Default Value

""

Remarks

This property specifies the IP address (IP number in dotted internet format) or the domain name of the FTP server. It is set before a connection is attempted and cannot be changed once a connection is in progress.

If this property is set to a domain name, a DNS request is initiated and upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, an error is returned.

If the class is configured to use a SOCKS firewall, the value assigned to this property may be preceded with an "*". If this is the case, the host name is passed to the firewall unresolved and the firewall performs the DNS resolution.

AS3Sender.RemotePort Property

This is the port for the FTP service (default is 21).

Syntax

getRemotePort(): number;
setRemotePort(remotePort: number): void;

Default Value

21

Remarks

This property contains the port for the FTP service, which defaults to 21 if not set. A valid port number (a value between 1 and 65535) is required for the connection to take place. The property must be set before a connection is attempted and cannot be changed once a connection is established. Any attempt to change this property while connected will fail with an error.

For an implicit Secure Sockets Layer (SSL), use port 990 (please see the SSLStartMode property for more information).

This property is not available at design time.

AS3Sender.SignatureAlgorithm Property

Signature algorithm to be used in outgoing messages.

Syntax

getSignatureAlgorithm(): string;
setSignatureAlgorithm(signatureAlgorithm: string): void;

Default Value

"sha-256"

Remarks

Signature Algorithm can be set to indicate the preferred signing algorithm. Possible values are:

• sha1
• md5
• sha-256 (or sha256) (default)
• sha-384 (or sha384)
• sha-512 (or sha512)
• sha-224 (or sha224)

The default value is "sha-256". When this property is set the MDNOptions property is automatically updated to request the MDN receipt be signed with the same algorithm.

AS3Sender.SigningCert Property

Contains the certificate to use when signing messages.

Syntax

getSigningCert(): Certificate;
setSigningCert(signingCert: Certificate): void;

Default Value

Remarks

This is your signing certificate. If this property is specified, the message content will be signed using the algorithm given by SignatureAlgorithm.

If set, this property should be a private key instance of Certificate.

AS3Sender.SSLAcceptServerCert Property

Instructs the class to unconditionally accept the server certificate that matches the supplied certificate.

Syntax

getSSLAcceptServerCert(): Certificate;
setSSLAcceptServerCert(SSLAcceptServerCert: Certificate): void;

Default Value

Remarks

If it finds any issues with the certificate presented by the server, the class will normally terminate the connection with an error.

You may override this behavior by supplying a value for SSLAcceptServerCert. If the certificate supplied in SSLAcceptServerCert is the same as the certificate presented by the server, then the server certificate is accepted unconditionally, and the connection will continue normally.

Please note that this functionality is provided only for cases where you otherwise know that you are communicating with the right server. If used improperly, this property may create a security breach. Use it at your own risk.

AS3Sender.SSLCert Property

The certificate to be used during SSL negotiation.

Syntax

getSSLCert(): Certificate;
setSSLCert(SSLCert: Certificate): void;

Default Value

Remarks

The digital certificate that the class will use during SSL negotiation. Set this property to a valid certificate before starting SSL negotiation. To set a certificate, you may set the field to the encoded certificate. To select a certificate, use the store and subject fields.

AS3Sender.SSLProvider Property

This specifies the SSL/TLS implementation to use.

Syntax

getSSLProvider(): As3senderSSLProviders;
setSSLProvider(SSLProvider: As3senderSSLProviders): void;

enum As3senderSSLProviders {
  sslpAutomatic,
  sslpPlatform,
  sslpInternal
}

Default Value

0

Remarks

This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic) the class will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.

Possible values are:

In most cases using the default value (Automatic) is recommended. The class will select a provider depending on the current platform.

When Automatic is selected the platform implementation will be used by default in all cases in the JavaScript edition.

Note: The Internal provider is not support at this time.

AS3Sender.SSLServerCert Property

The server certificate for the last established connection.

Syntax

getSSLServerCert(): Certificate;

Default Value

Remarks

SSLServerCert contains the server certificate for the last established connection.

SSLServerCert is reset every time a new connection is attempted.

This property is read-only.

AS3Sender.SSLStartMode Property

Determines how the class starts the SSL negotiation. By default, SSL will not be used.

Syntax

getSSLStartMode(): As3senderSSLStartModes;
setSSLStartMode(SSLStartMode: As3senderSSLStartModes): void;

enum As3senderSSLStartModes {
  sslAutomatic,
  sslImplicit,
  sslExplicit,
  sslNone
}

Default Value

3

Remarks

The SSLStartMode property may have one of the following values:

AS3Sender.Subject Property

The subject of the message.

Syntax

getSubject(): string;
setSubject(subject: string): void;

Default Value

""

Remarks

The optional human-readable subject of the message. Some AS2 partners will use this field to send additional information about the transmission at the transport layer.

AS3Sender.Timeout Property

A timeout for the class.

Syntax

getTimeout(): number;
setTimeout(timeout: number): void;

Default Value

60

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.

If Timeout is set to a positive value, the class will wait for the operation to complete before returning control.

The class will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If Timeout expires, and the operation is not yet complete, the class .

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

AS3Sender.User Property

This property contains the user identifier to use to log in.

Syntax

getUser(): string;
setUser(user: string): void;

Default Value

""

Remarks

This property contains the user identifier to be used when logging in. It must be set before the class connects to the FTP server.

AS3Sender.abort Method

The method aborts the current upload or download.

Syntax

async as3sender.abort(): Promise<void>

Remarks

This method sends an ABOR command to the FTP server. It is used to interrupt file uploads and downloads.

AS3Sender.changeRemotePath Method

This method changes the current path on the FTP server.

Syntax

async as3sender.changeRemotePath(remotePath : string): Promise<void>

Remarks

This method changes the current path on the FTP server to the specified RemotePath. When called, the class will issue a command to the server to change the directory. The RemotePath parameter may hold an absolute or relative path.

Absolute Paths

If the path begins with a /, it is considered an absolute path and must specify the entire path from the root of the server. For instance:

component.ChangeRemotePath("/home/testuser/myfolder");

Relative Paths

If the path does not begin with a /, it is considered a relative path and is resolved in relation to the current directory. For instance, a value of myfolder will indicate a subfolder of the current directory. The special value .. refers to the parent directory of the current path. For instance:

//Change to the 'myfolder' sub-directory component.ChangeRemotePath("myfolder"); //Navigate up two levels and then into the 'another/folder' path. component.ChangeRemotePath("../../another/folder");

AS3Sender.config Method

Sets or retrieves a configuration setting.

Syntax

async as3sender.config(configurationString : string): Promise<string>

Remarks

Config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

AS3Sender.deleteFile Method

This method removes a file specified by FileName from an FTP server.

Syntax

async as3sender.deleteFile(fileName : string): Promise<void>

Remarks

This method is used to remove a file specified by FileName from an FTP server. The remote file or directory specified by FileName is deleted. FileName is either an absolute path on the server, or a path relative to remote path set by ChangeRemotePath. If no FTP session is in place, one is automatically created by first calling the Logon method.

AS3Sender.getFileSize Method

Gets the size of a file on the FTP server.

Syntax

async as3sender.getFileSize(fileName : string): Promise<void>

Remarks

Gets the size of the file specified by FileName and RemotePath on the FTP server.

AS3Sender.getFileTime Method

Gets the last modification time of a file on the FTP server.

Syntax

async as3sender.getFileTime(fileName : string): Promise<void>

Remarks

Gets the last modification time of the file specified by FileName and RemotePath on the FTP server.

AS3Sender.listDirectory Method

List the current directory on an FTP server.

Syntax

async as3sender.listDirectory(filesToList : string): Promise<void>

Remarks

A listing is requested for the directory or file mask specified in FilesToList. This can be an absolute path on the server, a path relative to RemotePath, or a file mask. The file listing is received through the DirList event.

Similar to ListDirectoryLong, except only file names are returned. If no FTP session is in place, one is automatically created by first calling the Logon method.

AS3Sender.listDirectoryLong Method

List the current directory on an FTP server.

Syntax

async as3sender.listDirectoryLong(filesToList : string): Promise<void>

Remarks

A listing is requested for the directory or file mask specified in FilesToList. This can be an absolute path on the server, a path relative to RemotePath, or a file mask. The file listing is received through the DirList event. Extended file information is returned.

If no FTP session is in place, one is automatically created by first calling the Logon method.

AS3Sender.logoff Method

This method is used to log off from the FTP server by posting a QUIT command.

Syntax

async as3sender.logoff(): Promise<void>

Remarks

This method is used to log off from the FTP server by posting a QUIT command. If that fails, the connection is terminated by the local host.

AS3Sender.logon Method

Logon to the FTP RemoteHost using the current User and Password .

Syntax

async as3sender.logon(): Promise<void>

Remarks

Logon to the FTP server using the current User and Password. If an SSL (TLS) connection is required, you should first set SSLStartMode.

Example (Logging On)

FTPControl.RemoteHost = "ftpserver" FTPControl.User = "username" FTPControl.Password = "password" FTPControl.Logon()

AS3Sender.readReceipt Method

Reads and parses (but does not verify) an MDN receipt.

Syntax

async as3sender.readReceipt(filename : string): Promise<void>

Remarks

ReadReceipt will retrieve the file specified by Filename from the FTP server, and attempt to parse it as an MDN receipt. If the file is a valid MDN receipt, the class will determine the originator of the receipt and the MessageId of the original message. The originator of the receipt will be stored in AS3To, the intended recipient (presumably your system) will be stored in AS3From, and the original message Id will be stored in MessageId.

Pass in an empty string to skip the FTP transfer, and process the receipt specified by the MDNReceipt property instead.

You should then look up the original message and set OriginalContentMIC to the value of OriginalContentMIC originally computed when the message was sent (you will need to save this information externally). You should also set RecipientCert based on the value of AS3To if necessary. Also, set MDNOptions to the value used when making the original request.

Finally, VerifyReceipt should be used to verify the receipt.

AS3Sender.reset Method

Resets the state of the control.

Syntax

async as3sender.reset(): Promise<void>

Remarks

Reset resets the state of the class. All properties will be set to their default values.

AS3Sender.send Method

Prepares and sends the AS3 message.

Syntax

async as3sender.send(filename : string): Promise<void>

Remarks

Invoking Send will prepare and send the AS3 message. It will be signed if SigningCert is set, encrypted if RecipientCert is set, and compressed if CompressionFormat is set. A receipt will be requested if MDNTo is set.

Prior to sending, you may Logon to the FTP server and navigate to the desired RemotePath. If you have not created an FTP connection already then Send will attempt to establish one.

Filename should contain the name of the file that will be written on the AS3/FTP server. You may leave Filename blank to allow the class to determine an appropriate name.

AS3Sender.sendFTPCommand Method

Sends the exact command directly to the server.

Syntax

async as3sender.sendFTPCommand(command : string): Promise<void>

Remarks

This method sends the command specified by Command to the server exactly as it is provided. Use this method to send additional or custom commands directly to the server.

After calling this method check the FTPLastReply property and/or monitor the PITrail event to obtain the server's response.

AS3Sender.verifyReceipt Method

Verifies an MDN receipt.

Syntax

async as3sender.verifyReceipt(): Promise<void>

Remarks

VerifyReceipt verifies the receipt in MDNReceipt against the values of OriginalContentMIC and MessageId and the preferences specified in MDNOptions. The method operates similarly to Post: After the method finishes, the MDNReceipt, ReceiptSigningProtocol, and ReceiptSignerCert properties will be populated with the appropriate values.

The method operates synchronously, and will throw an exception if any errors or warnings occur. Errors might include a failure to decrypt or authenticate the receipt, the absence of an MDN when one was requested, TCP/IP errors, or any errors reported by the server in the MDN. Warnings might include the return of an unsigned receipt when a signed receipt was requested, or other warnings reported by the server in the MDN.

If an exception is thrown the error code will correspond to the severity of the warning or error, allowing client software to determine whether or not to accept the reply. If multiple errors occur, the exception will return a special error code, and the error message will contain a line for each error's code and description; i.e. "423: Failed to authenticate sender". If the error(s) is/are not fatal processing will not be interrupted, and the relevant properties will be populated as normal.

You should first invoke ReadReceipt when it is not known which message the receipt is in response to. This will allow you to determine the original MessageId and originator of the receipt before trying to verify it.

AS3Sender.ConnectionStatus Event

This event is fired to indicate changes in the connection state.

Syntax

as3sender.on('ConnectionStatus', listener: (e: {readonly connectionEvent: string, readonly statusCode: number, readonly description: string}) => void )

Remarks

The ConnectionStatus event is fired when the connection state changes: for example, completion of a firewall or proxy connection or completion of a security handshake.

The ConnectionEvent parameter indicates the type of connection event. Values may include the following:

AS3Sender.DirList Event

This event is fired when a directory entry is received.

Syntax

as3sender.on('DirList', listener: (e: {readonly dirEntry: string, readonly fileName: string, readonly isDir: boolean, readonly fileSize: number, readonly fileTime: string}) => void )

Remarks

The DirList events are fired when a directory listing is received as a response to a ListDirectory or ListDirectoryLong call.

The StartTransfer and EndTransfer events mark the beginning and end of the event stream.

The DirEntry parameter contains the filename when ListDirectory is called and includes extended file information when ListDirectoryLong is called.

The class tries to fill out the FileName, IsDir, FileSize, and FileTime parameters when calling the ListDirectoryLong method. Except for FileName, these parameters are empty when a short "List Directory" is performed.

In Unix systems, the date is given in two types of formats: If the date is in the past 12 months the exact time is specified and the year is omitted. Otherwise, only the date and the year, but not hours or minutes, are given.

AS3Sender.EndTransfer Event

This event is fired when a file finishes downloading or uploading.

Syntax

as3sender.on('EndTransfer', listener: (e: {readonly direction: number}) => void )

Remarks

The EndTransfer event fires when a Data Interface connection is closed. This occurs when the file finishes transferring or a directory listing is finished.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

AS3Sender.Error Event

Information about errors during data delivery.

Syntax

as3sender.on('Error', listener: (e: {readonly errorCode: number, readonly description: string}) => void )

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the class .

ErrorCode contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

AS3Sender.Log Event

Fired with log information while processing a message.

Syntax

as3sender.on('Log', listener: (e: {readonly logType: string, readonly logMessage: string, readonly logMessageB: Uint8Array}) => void )

Remarks

This event fires once for each log message generated by the class. The verbosity is controlled by the LogLevel setting.

Log messages available through this event correspond to log files written to LogDirectory. This event provides a way to obtain log messages without relying on files on disk. This event fires regardless of the value of LogDirectory (i.e. when LogDirectory is empty the event will still fire).

The LogMessage event parameter holds the raw log data.

The LogType event parameter indicates the type of log. Possible values are:

AS3Sender.PITrail Event

This event traces the commands sent to the server, and the respective replies.

Syntax

as3sender.on('PITrail', listener: (e: {readonly direction: number, readonly message: string}) => void )

Remarks

The PITrail event is useful for debugging purposes. It shows all of the interactions between the client and the server, line by line.

The Message parameter contains the full text of the message. The Direction parameter shows the originator of the message:

AS3Sender.SSLServerAuthentication Event

Fired after the server presents its certificate to the client.

Syntax

as3sender.on('SSLServerAuthentication', listener: (e: {readonly certEncoded: string, readonly certEncodedB: Uint8Array, readonly certSubject: string, readonly certIssuer: string, readonly status: string, accept: boolean}) => void )

Remarks

This event fires with information about the server certificate. The Status property shows why verification failed (otherwise, Status contains the string "OK"). To manually accept an untrusted certificate, the SSLAcceptAnyServerCert setting must be set to True before intiating the connection.

AS3Sender.SSLStatus Event

Shows the progress of the secure connection.

Syntax

as3sender.on('SSLStatus', listener: (e: {readonly message: string}) => void )

Remarks

The event is fired for informational and logging purposes only. Used to track the progress of the connection.

AS3Sender.StartTransfer Event

This event fires when a file starts downloading or uploading.

Syntax

as3sender.on('StartTransfer', listener: (e: {readonly direction: number}) => void )

Remarks

The StartTransfer event fires when a Data Interface connection is created. This is when the file starts transferring or a directory listing is started.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

AS3Sender.Transfer Event

This event is fired during the file download or upload.

Syntax

as3sender.on('Transfer', listener: (e: {readonly direction: number, readonly bytesTransferred: number, readonly percentDone: number, readonly text: string, readonly textB: Uint8Array}) => void )

Remarks

One or more Transfer events are fired during file transfer. The BytesTransferred parameter shows the number of bytes transferred since the beginning of the transfer.

Text contains the portion of the file data being delivered.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.

Certificate Type

This is the digital certificate being used.

Remarks

This type describes the current digital certificate. The certificate may be a public or private key. The fields are used to identify or select certificates.

Fields

Constructors

public Certificate();

Creates a Certificate instance whose properties can be set. This is useful for use with CERTMGR when generating new certificates.

public Certificate(String certificateFile);

Opens CertificateFile and reads out the contents as an X509 public key.

public Certificate(byte[] certificateData);

Parses CertificateData as an X509 public key.

public Certificate(int certStoreType, String store, String storePassword, String subject);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, String store, String storePassword, String subject, String configurationString);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. ConfigurationString is a newline separated list of name-value pairs that may be used to modify the default behavior. Possible values include "PersistPFXKey", which shows whether or not the PFX key is persisted after performing operations with the private key. This correlates to the PKCS12_NO_PERSIST_KEY CyrptoAPI option. The default value is True (the key is persisted). "Thumbprint" - a MD5, SHA1, or SHA256 thumbprint of the certificate to load. When specified, this value is used to select the certificate in the store. This is applicable to cstUser, cstMachine, cstPublicKeyFile, and cstPFXFile store types. "UseInternalSecurityAPI" shows whether the platform (default) or the internal security API is used when performing certificate-related operations. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, String store, String storePassword, byte[] encoded);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will load Encoded as an X509 certificate and search the opened store for a corresponding private key.

public Certificate(int certStoreType, byte[] storeBlob, String storePassword, String subject);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. StoreBlob is a string (binary- or base64-encoded) containing the certificate data. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, byte[] storeBlob, String storePassword, String subject, String configurationString);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. StoreBlob is a string (binary- or base64-encoded) containing the certificate data. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, byte[] storeBlob, String storePassword, byte[] encoded);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a string (binary- or base64-encoded) containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will load Encoded as an X509 certificate and search the opened store for a corresponding private key.

EDIAttachment Type

This describes the file being attached.

Remarks

Information about the file's location that is being attached to the message is contained here.

Fields

Constructors

public EDIAttachment();

public EDIAttachment(String filename);

public EDIAttachment(String filename, String contentType);

public EDIAttachment(String filename, String contentType, String headers);

EDIData Type

The EDI payload of the AS2 message.

Remarks

The EDI payload of the AS2 message.

Fields

Constructors

public EDIData();

public EDIData(byte[] data, String EDIType);

public EDIData(String filename, String EDIType);

Firewall Type

This is the firewall the class will connect through.

Remarks

When connecting through a firewall, this type is used to specify different properties of the firewall, such as the firewall and the .

Fields

Constructors

public Firewall();

MDNReceipt Type

The complete MDN Receipt returned by the receiver.

Remarks

The complete MDN Receipt contains the Message Disposition Notification (MDN) and an optional signature.

Fields

Constructors

public MDNReceipt();

public MDNReceipt(String headers, byte[] content);

Config Settings (class ipworksedi.as3sender)

AS3Sender Config Settings

FTP Config Settings

TCPClient Config Settings

SSL Config Settings

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

Socket Config Settings

Base Config Settings

Trappable Errors (class ipworksedi.as3sender)

AS3Sender Errors

FTP Errors

TCPClient Errors

TCP/IP Errors

SMIME Errors